Question
The ratio of monthly savings to monthly expenditure of
Meera is 4:5 respectively. If her savings rise by 50% while her expenditure falls by 40%, then her new monthly income is 21600. Find Meera’s original monthly expenditure.Solution
ATQ, Let original monthly savings and monthly expenditure of Meera is Rs. 4x and Rs. 5x respectively. According to question; 1.5 × 4x + 0.6 × 5x = 21600 6x + 3x = 21600 9x = 21600 So, x = 2400 Desired answer = 5 × 2400 = Rs. 12000
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